he opened fire at sandy hook elementary school and killed 20 children and six staff members. he also killed his mother. >>> new at 5:00 p.m., a push to save a dog from death. we told you about him when he attacked a police source in san francisco in august. ktvu's david stevenson is live with the latest move to keep the dog alive. >> reporter: late this afternoon the attorney for the owner obtained this restraining order, it prevents the city from euthanizing the dog. >> reporter: this is charlie. a pitbull. last august he attacked a u.s. park police horse. chasing him for a mile and a half. >> typical dog behavior. based on what we know, it is not typical to pursue a horse that you are afraid of. >> i saw the wounds but i am not sure how they occurred. bad things that were bound to occur. >> reporter: he is held by animal control and facing deaths for months now. the owner mounted an online campaign to raise support. today on the deadline for him to surrender the dog they said they would try to transfer him to a pet rescue. >> we can't do anything unless he surrenders the do